When moving the mouse out of the locator result window, I get systematically a crash

Here is the trace I have:

Process: Qt Creator [73914]
Path: /Applications/Qt Creator.app/Contents/MacOS/Qt Creator
Identifier: Qt Creator
Version: 4.9 (4.9.2)
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: Qt Creator [73914]
User ID: 502

Date/Time: 2019-08-06 11:30:03.471 +0200
OS Version: Mac OS X 10.14.6 (18G87)
Report Version: 12
Bridge OS Version: 3.0 (14Y901)
Anonymous UUID: 4ECBF263-AF51-4A15-7A09-087327D4D8B5

Sleep/Wake UUID: 7683E508-BD5C-4DC0-AF5F-9218A7B3D549

Time Awake Since Boot: 34000 seconds
Time Since Wake: 13000 seconds

System Integrity Protection: enabled

Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000008
Exception Note: EXC_CORPSE_NOTIFY

Termination Signal: Segmentation fault: 11
Termination Reason: Namespace SIGNAL, Code 0xb
Terminating Process: exc handler [73914]

VM Regions Near 0x8:
-->
__TEXT 000000010aa79000-000000010aa8d000 [ 80K] r-x/rwx SM=COW /Applications/Qt Creator.app/Contents/MacOS/Qt Creator

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 org.qt-project.QtWidgets 0x000000010ad97610 QWidget::mapTo(QWidget const*, QPoint const&) const + 32
1 org.qt-project.QtWidgets 0x000000010ad78c18 0x10ad60000 + 101400
2 org.qt-project.QtWidgets 0x000000010ad7918a 0x10ad60000 + 102794
3 org.qt-project.QtWidgets 0x000000010ad7e5f7 0x10ad60000 + 124407
4 org.qt-project.QtWidgets 0x000000010adace4d QWidget::event(QEvent*) + 1645
5 org.qt-project.QtWidgets 0x000000010ad70c3d QApplicationPrivate::notify_helper(QObject*, QEvent*) + 269
6 org.qt-project.QtWidgets 0x000000010ad72042 QApplication::notify(QObject*, QEvent*) + 594
7 org.qt-project.QtCore 0x000000010bbd46e4 QCoreApplication::notifyInternal2(QObject*, QEvent*) + 212
8 org.qt-project.QtCore 0x000000010bbd591e QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) + 878
9 libqcocoa.dylib 0x000000010e14e499 0x10e119000 + 218265
10 libqcocoa.dylib 0x000000010e14ec00 0x10e119000 + 220160
11 com.apple.CoreFoundation 0x00007fff4e80a683 _CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION_ + 17
12 com.apple.CoreFoundation 0x00007fff4e80a629 __CFRunLoopDoSource0 + 108
13 com.apple.CoreFoundation 0x00007fff4e7edfeb __CFRunLoopDoSources0 + 195
14 com.apple.CoreFoundation 0x00007fff4e7ed5b5 __CFRunLoopRun + 1189
15 com.apple.CoreFoundation 0x00007fff4e7ecebe CFRunLoopRunSpecific + 455
16 com.apple.HIToolbox 0x00007fff4da4c1ab RunCurrentEventLoopInMode + 292
17 com.apple.HIToolbox 0x00007fff4da4bee5 ReceiveNextEventCommon + 603
18 com.apple.HIToolbox 0x00007fff4da4bc76 _BlockUntilNextEventMatchingListInModeWithFilter + 64
19 com.apple.AppKit 0x00007fff4bde479d _DPSNextEvent + 1135
20 com.apple.AppKit 0x00007fff4bde348b -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1361
21 com.apple.AppKit 0x00007fff4bddd5a8 -[NSApplication run] + 699
22 libqcocoa.dylib 0x000000010e14db7b 0x10e119000 + 215931
23 org.qt-project.QtCore 0x000000010bbcfcff QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) + 431
24 org.qt-project.QtCore 0x000000010bbd4cf2 QCoreApplication::exec() + 130
25 org.qt-project.qtcreator 0x000000010aa84b01 main + 15217
26 libdyld.dylib 0x00007fff7a73f3d5 start + 1